CN112374848A - Foam light soil roadbed filling material and processing method thereof - Google Patents
Foam light soil roadbed filling material and processing method thereof Download PDFInfo
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- CN112374848A CN112374848A CN202011163310.7A CN202011163310A CN112374848A CN 112374848 A CN112374848 A CN 112374848A CN 202011163310 A CN202011163310 A CN 202011163310A CN 112374848 A CN112374848 A CN 112374848A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/383—Producing cellular concrete comprising stirrers to effect the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
- B28C5/388—Methods
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- General Chemical & Material Sciences (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a foam light soil roadbed filling material, which comprises the following components in parts by weight: the foamed lightweight soil contains per cubic meter: 174-475 kg of ordinary portland cement, 116-190 kg of stone powder, 116-190 kg of fly ash, 116-190 kg of sludge ash, 116-190 kg of mineral powder, 116-190 kg of gypsum, 87-285 kg of water, 0.87-2.85 kg of a water reducing agent, 0.87-1.43 kg of a concrete reinforcing agent, 0.87-2.85 kg of an enhanced water reducing agent, 0.3-1.2 kg of a cement foaming agent and 0.15-0.95 kg of fibers.
Description
Technical Field
The invention belongs to the field of roadbed construction, and particularly relates to a foam light soil roadbed filling material and a processing method thereof.
Background
In the conventional roadbed construction, particularly, at the bridge abutment back of the road-bridge joint part, the soft connection part under the butt strap between the main bridge and the approach bridge and other parts, low-compression-ratio soil (such as graded broken stone, pond slag, lime soil and the like) is conventionally adopted for filling. When in construction, rolling and tamping are needed to be carried out on 20-1250 px soil each time, after the compactness meets the design requirement, the next layer of filling, rolling and tamping is carried out, and after the filling reaches the design elevation, the pavement structure layer can be laid only after a long-time post-construction settlement period (several months, half a year or more). The long settling period after construction contradicts the timeliness and economy of engineering construction. At the transition sections such as bridge abutment backs, after pavement structure layers are laid and put into use, uneven settlement is easily generated due to reasons such as overlarge filler load, rainwater infiltration and insufficient bearing capacity of a foundation, and the phenomenon of vehicle jumping is caused. The traditional treatment method is to improve the bearing capacity of the foundation, but the treatment method not only is difficult to solve the problems fundamentally, but also has the problems of overlong construction period, low economy and the like. Meanwhile, the underground chamber, the two sides of the tunnel, the dense pipeline and other positions are difficult to backfill and compact by using traditional materials due to narrow space.
Disclosure of Invention
The invention provides a high-fluidity and densely backfilled foam light soil roadbed filling material and a processing method thereof, aiming at overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a foam light soil roadbed filling material comprises the following components by weight:
the foamed lightweight soil contains per cubic meter: 174-475 kg of ordinary portland cement, 116-190 kg of stone powder, 116-190 kg of fly ash, 116-190 kg of sludge ash, 116-190 kg of mineral powder, 116-190 kg of gypsum, 87-285 kg of water, 0.87-2.85 kg of a water reducing agent, 0.87-1.43 kg of a concrete reinforcing agent, 0.87-2.85 kg of an enhanced water reducing agent, 0.3-1.2 kg of a cement foaming agent and 0.15-0.95 kg of fibers.
The foam light soil material has the advantages of good heat preservation, good fluidity, small density, strength greater than that of the conventional backfilled soil, integral filling, good shock resistance, no lateral pressure, small load on a foundation and a structure and the like. After the foam light soil is used for filling, the abutment back is in a hyperconcentration state, so that the settlement and the uneven settlement are reduced, the post-construction settlement of the abutment back embankment filler is thoroughly eliminated, the bump at the bridge head is avoided, and the method has obvious technical advantages. The foam light soil is adopted for filling, so that the maintenance cost of the back of the construction site can be greatly reduced, the using amount of a bridge pile foundation can be reduced, the comprehensive cost is low, and the economic advantage of higher cost performance is achieved; meanwhile, fly ash, sludge ash, stone powder, mineral powder and the like are selected as raw materials of the foamed lightweight soil to replace part of cement, so that the hydration heat of the foamed lightweight soil can be reduced, and the national policy of 'green, low-carbon, environmental protection and sustainable development' is met.
The cement is the cement with the reference number of 42.5 or 52.5; the water reducing agent is a naphthalene-based high-efficiency water reducing agent or a polycarboxylic acid high-performance water reducing agent; the foaming agent is a physical compound foaming agent.
The stone powder is any one of natural volcanic ash, artificial volcanic ash or limestone powder; the fibers are glass fibers; the water is surface water.
The invention also discloses a processing method for preparing the foam light soil roadbed filling material, which comprises the following steps:
1) preparing a diluent;
2) preparing slurry by using stirring equipment;
3) modulating foam by using a plunger pump and an air compressor;
4) producing foamed light soil;
the stirring equipment in the step 2) comprises a shell, a cover body arranged on the shell, a feeding hole arranged on the shell, a discharging hole arranged on the shell, a fixed shaft arranged on the cover body, a stirring device arranged on the fixed shaft, a cleaning device arranged on the cover body and an adjusting device arranged on the fixed shaft; the stirring device comprises a driving piece arranged on the fixed shaft, a driving shaft arranged on the driving piece, a stirring frame arranged on the driving shaft, a material baffle arranged on the stirring frame and a blanking port arranged on the material baffle; the discharge port is provided with a valve, the driving shaft can rotate relative to the fixed shaft, the stirring frame is spirally arranged along the circumferential direction of the driving shaft, and the material baffle plate is spirally arranged along the circumferential direction of the driving shaft; after the materials for preparing the slurry enter the shell from the feed inlet, the driving piece is started to drive the driving shaft to rotate, and then the stirring frame is driven to rotate by the driving shaft, during the rotation of the stirring frame, the materials are conveyed upwards along the spiral structure of the stirring frame, the materials at the edge of the stirring frame are blocked by the material baffle plate, and then the materials fall from the material falling port after being conveyed to the uppermost end of the stirring frame, meanwhile, the materials are uniformly scattered at different positions of the shell by matching with the rotation of the stirring frame, so that the materials at the bottom of the shell can be continuously conveyed to the upper parts of the materials by the stirring frame, thereby leading the upper layer and the lower layer of the materials to be continuously stirred, increasing the stirring effect of the materials, avoiding the condition of poor quality of the slurry finished product caused by the fact that the materials at the bottom of the shell can not be stirred, meanwhile, the stirring effect of the materials is better through the gravity of the materials falling from a high position to a low position; through the arrangement of the material baffle, when the materials are driven by the stirring frame to be transported upwards, the materials at the edge of the stirring frame can be blocked by the material baffle, so that the condition that the materials on the stirring frame fall off from the stirring frame too early is avoided, the condition that the material stirring effect is poor due to the fact that the materials fall off from the stirring frame too early is further avoided, and the material stirring effect is ensured; through the setting of blanking mouth for the material can be even scatter in the different positions department of casing, has increased the stirring effect of the inside material everywhere of casing, has avoided the material to drop to a department and this department that leads to produces the condition that the material is piled up, and then has avoided somewhere in the casing because the material piles up the condition that the material stirring effect that leads to worsens.
The cleaning device comprises a cleaning disc arranged on the cover body, a plurality of first telescopic rods used for connecting the cover body and the cleaning disc, a plurality of cleaning blocks arranged on the cleaning disc, a connecting ring used for connecting the cleaning blocks, a first baffle ring arranged on the shell, a second baffle ring arranged on the shell, a first annular groove arranged on one side of the first baffle ring, and a second annular groove arranged on one side of the second baffle ring; the cleaning blocks can rotate relative to the cleaning disc, the cleaning blocks are arranged in an inclined structure when in use, the cleaning blocks are arranged in an annular structure when closed, and the connecting ring has elasticity; when the interior of the shell needs to be cleaned, the first telescopic rod is extended to drive the cleaning disc to move downwards, and the cleaning block which is obliquely arranged is matched to scrape the inner wall of the shell, so that the inner wall of the shell can be cleaned through the cleaning block, the situation that the ratio is different when subsequent materials are stirred due to the fact that a large amount of slurry is left on the inner wall of the shell is avoided, and meanwhile, the cleaning operation of the interior of the shell is facilitated; when the cleaning disc moves to the bottom of the shell, the cleaning blocks contact the second baffle ring and drive the cleaning blocks to turn upwards under the blocking of the second baffle ring, then the first telescopic rod is contracted to drive the cleaning disc to move upwards, and in the process of moving the cleaning disc upwards, the inner wall of the shell is cleaned for the second time through the cleaning blocks after turning upwards, so that the cleaning effect of the cleaning blocks on the inner wall of the shell is increased; through the arrangement of the connecting rings, after the plurality of cleaning plates are turned downwards or upwards, the plurality of cleaning plates can be limited and fixed through the connecting rings, so that the plurality of cleaning plates are prevented from turning over by themselves, the stability of the cleaning plates in cleaning the inner wall of the shell is improved, and the cleaning effect of the inner wall of the shell is further improved; through the setting of first annular and second annular, when the clearance board overturns under the blockking of first shelves ring sum second shelves ring, first annular and second annular can provide the space of upset for the clearance board, produce the condition of interfering with shells inner wall when having avoided the clearance board upset, and then avoided clearance board and casing to produce the clearance board or the casing that interfere and lead to and the damaged condition appears, the life of equipment has been increased, the maintenance cost of equipment has been reduced.
The cleaning device also comprises a mounting groove arranged on the cleaning disc, two rotating baffles arranged on the mounting groove, a limiting hole arranged on the mounting groove, a limiting rod arranged on the limiting hole, and a cleaning plate arranged on the limiting rod; the rotating baffle can rotate relative to the mounting groove, a torsional spring is arranged in the rotating baffle, one end of the torsional spring is connected to the rotating baffle, the other end of the torsional spring is connected to the mounting groove, the limiting rod is in threaded connection with the limiting hole, and the cleaning plate is matched with the stirring frame; when the cleaning disc moves under the driving of the first telescopic rod, the cleaning plate moves downwards along with the cleaning disc, then the cleaning plate contacts with the stirring frame and the material blocking plate, the driving piece is started to drive the driving shaft and the stirring frame to rotate at the moment, so that the cleaning plate is scraped along the surface of the stirring frame, the condition that a large amount of slurry is remained on the stirring frame is avoided, and meanwhile, through the cooperation between the rotation of the stirring frame and the descending of the cleaning plate, the cleaning plate can be always kept in a state of being attached to the surface of the stirring frame in the descending process, and the cleaning effect of the cleaning plate on the stirring frame is improved; through the arrangement of the rotating baffle, when the stirring frame is cleaned by the cleaning plate, the mounting groove can be shielded through the rotating baffle, so that the condition that slurry splashes into the mounting groove when the cleaning plate is cleaned is avoided, and the cleanness of the mounting groove is ensured; through the setting of spacing hole and gag lever post, when the cleaning plate did not use, can rotate the cleaning plate and drive the gag lever post and deviate from spacing hole, the baffle is rotated this moment and can make things convenient for taking out and subsequent installation operation of gag lever post, has made things convenient for dismantlement and the installation step to the cleaning plate.
In summary, the invention has the following advantages: the high-fluidity concrete pile has the advantages of high fluidity, compact backfill, low comprehensive cost and high cost performance, reduces the maintenance cost of the back of the pile foundation, and can reduce the using amount of the pile foundation of the bridge.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention.
Fig. 4 is a partial enlarged view of the invention at a in fig. 3.
Fig. 5 is a partial enlarged view of the invention at B in fig. 3.
Fig. 6 is a side view of the present invention.
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6 in accordance with the present invention.
Fig. 8 is a partial enlarged view of the invention at a in fig. 7.
Fig. 9 is a partial enlarged view of the invention at B in fig. 7.
Fig. 10 is a cross-sectional view taken along line C-C of fig. 6 in accordance with the present invention.
Fig. 11 is a partial enlarged view of the invention at a in fig. 10.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Example 1:
a processing method for preparing a foam light soil roadbed filling material comprises the following steps:
1) preparing a diluent:
firstly adding a foaming agent and then adding water, wherein the ratio of the foaming agent to the water is 1: 40-100, the dilution ratio can be adjusted according to different use requirements, the diluted solution is used up within 24 hours after being prepared, and otherwise, the diluted solution is stirred uniformly again.
2) Preparing slurry by using stirring equipment:
firstly, starting stirring equipment, adding water into the stirring equipment (the amount is not less than 200 kg once, and the specific amount is adjusted according to the size of the stirring equipment), adding cement into the stirring equipment (the addition amount of the cement is set according to the water amount, and the water-cement ratio is set to be 0.55-0.65), discharging the slurry into a concrete mixer after the slurry is stirred, and circularly working in the way.
3) Foam was modulated using a plunger pump and air compressor:
and starting a plunger pump and an air compressor to mix the prepared diluent with the compressed air and generate foam through a foam generator, wherein the volume weight of the foam group is adjusted according to actual needs (generally 25-50 kg per cubic meter), and the foam group is shut down for later use after being adjusted.
4) Producing foamed light soil:
and starting the slurry pumping equipment, then starting the plunger pump and the air compressor, directly conveying the slurry and the foam to a use site by using a pipeline after the slurry and the foam pass through the mixer, weighing the wet volume weight at a discharge port, and correspondingly adjusting according to the site mixing ratio requirement.
Example 2:
a processing method for preparing a foam light soil roadbed filling material comprises the following steps:
1) preparing a diluent:
firstly adding a foaming agent and then adding water, wherein the ratio of the foaming agent to the water is 1: 40-100, the dilution ratio can be adjusted according to different use requirements, the diluted solution is used up within 24 hours after being prepared, and otherwise, the diluted solution is stirred uniformly again.
2) Preparing slurry by using stirring equipment:
firstly starting stirring equipment, adding water (the amount is not less than 200 kg once, the specific amount is adjusted according to the size of the stirring equipment) into the stirring equipment, adding and reducing a water reducing agent (the amount of the water reducing agent is adjusted according to the addition amount of cement and the requirement of mud fluidity), adding cement into the stirring equipment (the addition amount of the cement is set according to the water amount, the water-cement ratio is set to be 0.3-0.45), discharging the slurry into a concrete mixer after the slurry is stirred, and circularly working in the way.
3) Foam was modulated using a plunger pump and air compressor:
and starting a plunger pump and an air compressor to mix the prepared diluent with the compressed air and generate foam through a foam generator, wherein the volume weight of the foam group is adjusted according to actual needs (generally 25-50 kg per cubic meter), and the foam group is shut down for later use after being adjusted.
4) Producing foamed light soil:
and starting the slurry pumping equipment, then starting the plunger pump and the air compressor, directly conveying the slurry and the foam to a use site by using a pipeline after the slurry and the foam pass through the mixer, weighing the wet volume weight at a discharge port, and correspondingly adjusting according to the site mixing ratio requirement.
Example 3:
a processing method for preparing a foam light soil roadbed filling material comprises the following steps:
1) preparing a diluent:
firstly adding a foaming agent and then adding water, wherein the ratio of the foaming agent to the water is 1: 40-100, the dilution ratio can be adjusted according to different use requirements, the diluted solution is used up within 24 hours after being prepared, and otherwise, the diluted solution is stirred uniformly again.
2) Preparing slurry by using stirring equipment:
firstly starting stirring equipment, adding water (the amount of the water reducing agent is adjusted according to the requirements of the addition amount of a cementing material and the fluidity of slurry) into the stirring equipment, adding water reducing agent (the amount of the water reducing agent is adjusted according to the addition amount of a cementing material and the fluidity of the slurry), adding cement (the addition amount of the cement is set according to the water amount, the water-cement ratio is set to be 0.3-0.45) into the stirring equipment, finally adding stone powder (or fly ash, sludge ash, mineral powder, gypsum and the like, wherein one or two of the materials can be selected optionally, and the addition sequence of the materials and the cement can be interchanged), discharging the slurry into a concrete mixer after the slurry is stirred, and circularly working in the way.
3) Modulating foam by using a plunger pump and an air compressor;
and starting a plunger pump and an air compressor to mix the prepared diluent with the compressed air and generate foam through a foam generator, wherein the volume weight of the foam group is adjusted according to actual needs (generally 25-50 kg per cubic meter), and the foam group is shut down for later use after being adjusted.
4) Producing foamed light soil;
and starting the slurry pumping equipment, then starting the plunger pump and the air compressor, directly conveying the slurry and the foam to a use site by using a pipeline after the slurry and the foam pass through the mixer, weighing the wet volume weight at a discharge port, and correspondingly adjusting according to the site mixing ratio requirement.
Example 4:
a processing method for preparing a foam light soil roadbed filling material comprises the following steps:
1) preparing a diluent:
0.3kg of cement foaming agent is added, then water is added, the ratio of the cement foaming agent to the water is 1: 40-100, the dilution ratio can be adjusted according to different use requirements, the diluent is used up within 24 hours after being adjusted, and the mixture is stirred uniformly again if the diluent is not used up.
2) Preparing slurry by using stirring equipment:
firstly starting a stirring device, adding 87kg of water into the stirring device, adding 0.87kg of water reducing agent and 0.87kg of water reducing agent, then adding 0.87kg of concrete reinforcing agent, 0.87kg of enhanced water reducing agent and 0.15kg of fiber, adding 174kg of cement into the stirring device, adding short fiber with the length of 6mm, wherein the addition amount of the short fiber is 0.05 percent of that of a cementing material, and finally adding 116kg of stone powder (or 116kg of fly ash, 116kg of sludge ash, 116kg of mineral powder, 116kg of gypsum and the like, wherein one or two of the materials can be selected optionally, and the addition sequence of the materials and the cement can be interchanged), discharging the slurry into a concrete mixer after the slurry is stirred, and circularly working.
3) Modulating foam by using a plunger pump and an air compressor;
and starting a plunger pump and an air compressor to mix the prepared diluent with the compressed air and generate foam through a foam generator, wherein the volume weight of the foam group is adjusted according to actual needs (generally 25-50 kg per cubic meter), and the foam group is shut down for later use after being adjusted.
4) Producing foamed light soil;
and starting the slurry pumping equipment, then starting the plunger pump and the air compressor, directly conveying the slurry and the foam to a use site by using a pipeline after the slurry and the foam pass through the mixer, weighing the wet volume weight at a discharge port, and correspondingly adjusting according to the site mixing ratio requirement.
Example 5:
a processing method for preparing a foam light soil roadbed filling material comprises the following steps:
1) preparing a diluent:
1.2kg of cement foaming agent is added, then water is added, the ratio of the cement foaming agent to the water is 1: 40-100, the dilution ratio can be adjusted according to different use requirements, the diluent is used up within 24 hours after being adjusted, and the mixture is stirred uniformly again if the diluent is not used up.
2) Preparing slurry by using stirring equipment:
firstly starting a stirring device, adding 285kg of water into the stirring device, adding 2.85kg of water reducing agent, adding 1.43kg of concrete reinforcing agent, 2.85kg of enhanced water reducing agent and 0.95kg of fiber, adding 475kg of cement into the stirring device, adding short fiber with the length of 12mm, wherein the addition amount of the short fiber is 0.2 percent of that of a gelled material, and finally adding 190kg of stone powder (or 190kg of fly ash, 190kg of sludge ash, 190kg of mineral powder, 190kg of gypsum and the like, wherein one or two of the materials can be selected optionally, and the addition sequence of the materials and the cement can be interchanged), discharging the slurry into a concrete mixer after the slurry is stirred, and circularly working.
3) Modulating foam by using a plunger pump and an air compressor;
and starting a plunger pump and an air compressor to mix the prepared diluent with the compressed air and generate foam through a foam generator, wherein the volume weight of the foam group is adjusted according to actual needs (generally 25-50 kg per cubic meter), and the foam group is shut down for later use after being adjusted.
4) Producing foamed light soil;
and starting the slurry pumping equipment, then starting the plunger pump and the air compressor, directly conveying the slurry and the foam to a use site by using a pipeline after the slurry and the foam pass through the mixer, weighing the wet volume weight at a discharge port, and correspondingly adjusting according to the site mixing ratio requirement.
Example 6:
a processing method for preparing a foam light soil roadbed filling material comprises the following steps:
1) preparing a diluent:
1kg of cement foaming agent is added, then water is added, the ratio of the cement foaming agent to the water is 1: 40-100, the dilution ratio can be adjusted according to different use requirements, the diluent is used up within 24 hours after being adjusted, and the diluent is stirred uniformly again if not.
2) Preparing slurry by using stirring equipment:
firstly, starting stirring equipment, adding 150kg of water into the stirring equipment, adding 1.5kg of water reducing agent and adding 1.5kg of concrete reinforcing agent, 1.5kg of enhanced water reducing agent and 0.75kg of fiber, adding 300kg of cement into the stirring equipment, adding 9mm short fiber, wherein the addition amount of the short fiber is 0.1 percent of that of a cementing material, and finally adding 160kg of stone powder (or 160kg of fly ash, 160kg of sludge ash, 160kg of mineral powder, 160kg of gypsum and the like, wherein one or two of the materials can be selected optionally, and the addition sequence of the materials and the cement can be interchanged), discharging the slurry into a concrete mixer after the slurry is stirred, and circularly working in the way.
3) Modulating foam by using a plunger pump and an air compressor;
and starting a plunger pump and an air compressor to mix the prepared diluent with the compressed air and generate foam through a foam generator, wherein the volume weight of the foam group is adjusted according to actual needs (generally 25-50 kg per cubic meter), and the foam group is shut down for later use after being adjusted.
4) Producing foamed light soil;
and starting the slurry pumping equipment, then starting the plunger pump and the air compressor, directly conveying the slurry and the foam to a use site by using a pipeline after the slurry and the foam pass through the mixer, weighing the wet volume weight at a discharge port, and correspondingly adjusting according to the site mixing ratio requirement.
The foamed lightweight soil in the embodiments 1 to 6 should be poured in layers during construction, the thickness of one pouring should be larger than 30CM and smaller than 80CM, and gaps should be arranged at intervals of 10m to 15 m. When the daily average temperature of a construction site is lower than 5 ℃ for 5 consecutive days, or the lowest temperature is lower than-3 ℃, construction is required to be carried out according to the construction requirements in winter. The air bubble group should be mixed with the cement-based slurry evenly in time, and the stagnation time of the freshly mixed foam light soil in pumping equipment and pumping pipelines should not exceed 1 hour.
As shown in fig. 1 to 11, the stirring apparatus described in embodiments 1 to 6 includes a casing 1, a cover 2 disposed on the casing, a feeding port 11 disposed on the casing, a discharging port 12 disposed on the casing, a fixed shaft 21 disposed on the cover, a stirring device 3 disposed on the fixed shaft, a cleaning device 4 disposed on the cover, and an adjusting device 5 disposed on the fixed shaft; the stirring device comprises a driving part 31 arranged on the fixed shaft, a driving shaft 32 arranged on the driving part, a stirring frame 33 arranged on the driving shaft, a material baffle plate 34 arranged on the stirring frame, and a blanking port 35 arranged on the material baffle plate; the discharge port is provided with a valve, the driving shaft can rotate relative to the fixed shaft, the stirring frame is spirally arranged along the circumferential direction of the driving shaft, the material baffle plate is spirally arranged along the circumferential direction of the driving shaft, the cover body is connected with the shell through a buckle, and the driving piece is a motor; after the material of preparation mud enters into the casing from feed inlet department, start the driving piece and drive the drive shaft and rotate, and then drive the stirring frame through the drive shaft and rotate, at stirring frame pivoted in-process, the material can be up transported along the heliciform structure of stirring frame, and block the material of stirring frame edge department through the striker plate, after the material is transported to the stirring frame top, the material can drop from feed inlet department, cooperate the rotation of stirring frame simultaneously, make the even different positions of scattering at the casing of material.
As shown in fig. 3 and 4, the cleaning device 4 includes a cleaning disk 41 disposed on the cover body 2, a plurality of first telescopic rods 42 for connecting the cover body and the cleaning disk, a plurality of cleaning blocks 43 disposed on the cleaning disk, a connecting ring 44 for connecting the cleaning blocks, a first stop ring 45 disposed on the housing, a second stop ring 46 disposed on the housing, a first annular groove 47 disposed on one side of the first stop ring, and a second annular groove 48 disposed on one side of the second stop ring; the cleaning blocks can rotate relative to the cleaning disc, the cleaning blocks are arranged in an inclined structure when in use, the cleaning blocks are arranged in an annular structure when closed, the connecting ring has elasticity, the first telescopic rod is an air rod driven by an air pump, and the connecting ring is made of rubber; when the inside clearance that needs of casing, the first telescopic link of extension drives clearance dish downstream, the clearance piece that the cooperation slope set up strikes off the inner wall of casing, when clearance dish removes to the casing bottom, the clearance piece contacts second shelves ring, and drive a plurality of clearance piece upsets under the blockking of second shelves ring, shrink first telescopic link afterwards and drive clearance dish upstream, and at the in-process of clearance dish upstream, carry out the secondary clearance to the casing inner wall through the clearance piece after the upsets, when clearance dish removes to the top afterwards, the clearance piece can contact first shelves ring, and drive a plurality of clearance piece upsets under the blockking of first shelves ring, this process of circulation afterwards, accomplish until the clearance of casing inner wall.
As shown in fig. 4, the cleaning device 4 further includes a mounting groove 49 disposed on the cleaning disc 41, two rotating baffles 40 disposed on the mounting groove, a limiting hole 401 disposed on the mounting groove, a limiting rod 402 disposed on the limiting hole, and a cleaning plate 403 disposed on the limiting rod; the rotating baffle can rotate relative to the mounting groove, a torsional spring is arranged in the rotating baffle, one end of the torsional spring is connected to the rotating baffle, the other end of the torsional spring is connected to the mounting groove, the limiting rod is in threaded connection with the limiting hole, and the cleaning plate can clean the surface of the stirring frame; when the clearance dish removed under the drive of first telescopic link, the clearance board can be along with the clearance dish down remove together, and the clearance board can contact stirring frame and striker plate afterwards, starts driving piece this moment and drives drive shaft and stirring frame and rotate for the clearance board strikes off along the surface of stirring frame.
As shown in fig. 5, 10 and 11, the adjusting device 5 includes a rotating shaft 51 disposed inside the fixed shaft 21, two adjusting assemblies disposed on the rotating shaft, two scraping assemblies disposed on the two adjusting assemblies, and two supporting assemblies disposed on the two adjusting assemblies, respectively; the adjusting assembly comprises a first scraping plate 52 arranged on the fixed shaft, a second scraping plate 53 rotatably arranged on the first scraping plate, a limiting plate 54 arranged on the rotating shaft, a rotating block 55 arranged on one side of the limiting plate, a limiting groove 56 arranged on the rotating block, a second telescopic rod 57 used for connecting the second scraping plate and the rotating block, a second driving piece 58 arranged on the cover body, a gear 59 arranged on the second driving piece, and a rotating ring 50 used for connecting the cover body and the first telescopic rod; the rotating shaft can rotate relative to the fixed shaft, the two adjusting assemblies are identical in structure and symmetrically arranged, the two scraping assemblies are identical in structure and symmetrically arranged, the two supporting assemblies are identical in structure and symmetrically arranged, the rotating block can rotate relative to the fixed shaft, the limiting plate is buckled into the limiting groove, the second telescopic rod is rotatably connected with the second scraping plate, the gear can rotate relative to the cover body, the gear is meshed with the rotating ring, and the second driving piece is a motor; when the cleaning disc finishes cleaning the inner wall of the shell, partial slurry is remained on the upper surface of the cleaning disc, the cleaning disc is moved to the top so that the upper surface of the cleaning disc is attached to the lower surfaces of the first scraping plate and the second scraping plate, then the second driving piece is started to drive the gear to rotate, and further the rotating ring is driven to rotate through the engagement of the gear and the rotating ring, so that the cleaning disc rotates, when the cleaning disc starts to rotate, the upper surface of the cleaning disc is attached to the first scraping plate and the second scraping plate to rotate, at the moment, the first scraping plate and the second scraping plate can scrape the upper surface of the cleaning disc, so that the residual slurry on the cleaning disc is scraped, then when the scraping difference of the slurry on the cleaning disc is not much, the twisting rotating shaft rotates relative to the fixed shaft, and the rotating block is driven to rotate through the matching of the limiting plate and the limiting groove, the turning block can drive the second through the second telescopic link and scrape the flitch and rotate afterwards for the second scrapes the flitch and produces the slope for the first flitch of scraping, and the clearance dish continues to rotate this moment, makes the mud of being scraped on the clearance dish can be scraped the flitch by the second after the slope and promote to the inboard, and drops downwards from the inboard of clearance dish, has increased the clearance effect to the clearance dish.
As shown in fig. 8, the scraping assembly includes a first sliding slot 501 disposed on the second scraping plate, a first sliding block 502 disposed on the first sliding slot, a first elastic member 503 for connecting the first sliding slot and the first sliding block, a scraping block 504 disposed on the first sliding block, a second sliding slot 505 disposed on the second scraping plate, a second sliding block 506 disposed on the second sliding slot, a second elastic member 507 for connecting the second sliding slot and the second sliding block, a pushing block 508 disposed on the second sliding block, and a plurality of rotating plates disposed on the pushing block; the first sliding block can move relative to the first sliding groove, one side of the scraping block is arranged in an arc structure, the second sliding block can move relative to the second sliding groove, the rotating plate can rotate relative to the pushing block, the lengths of the rotating plates are sequentially increased, the pushing block and the second sliding block are connected through a buckle, a torsion spring is arranged in the rotating plate, one end of the torsion spring is connected to the rotating plate, and the other end of the torsion spring is connected to the pushing block; when the equipment stirs the slurry, the scraping block can be contracted inside the second scraping plate, so that materials such as the slurry can be prevented from entering the first sliding groove and the like, the cleanliness inside the first sliding groove is increased, when the cleaning disc moves upwards and is attached to the bottom of the second scraping plate, the cleaning disc can push the push block to enable the push block and the plurality of rotating plates to move upwards along the arc-shaped structure of the scraping block, the scraping block is driven to move towards the lower oblique direction, one end of the scraping block is enabled to move to the surface of the cleaning disc, then the surface of the cleaning disc is scraped through the scraping block through the movement of the cleaning disc, and the cleaning effect of the surface of the cleaning disc is increased; through the setting of a plurality of rotor plates, can protect the second spout at ordinary times, avoided the condition that mud etc. entered into in the second spout, when the ejector pad was upwards promoted, a plurality of rotor plates can be laminated and scrape the arc department of piece and remove, overturn under scraping blockking of piece afterwards, avoided the rotor plate and scraped the condition that produces the interference between the piece, stability when having increased equipment, simultaneously at the in-process that the ejector pad removed, the rotor plate can play the guard action to the second spout always, the inside cleanliness of second spout has been increased.
As shown in fig. 9, the supporting assembly includes two supporting frames 510 disposed on the fixed shaft, two supporting rods 511 for connecting the two supporting frames, two rotatable balls 512 disposed on the supporting rods in a rotatable manner, two supporting rings 513 respectively sleeved on the two rotatable balls, two connecting rods 514 for connecting the rotatable block and the two supporting rings, and a plurality of push plates 515 disposed on the rotatable balls; the support ring is arranged in an arc structure, the rotating ball can roll along the two support rods, the support ring can rotate relative to the rotating ball, and the push plates are uniformly distributed along the circumferential direction of the rotating ball; when the rotating block is rotated, the rotating block can drive the support ring to move through the connecting rod, then the support ring can drive the rotating ball to move, and meanwhile, the rotating ball can roll along the two support rods in the moving process, so that the stability of the rotating block in the rotating process is improved; through the setting of push pedal, after equipment has been used a period, position between two bracing pieces may have materials such as partly mud to block, when the rolling ball rotates this moment, the push pedal can be driven by the rolling ball and turn, make the push pedal that turns carry out decurrent promotion to the material that blocks that makes, make the material of card between two bracing pieces can be pushed away, the rolling ball that has avoided the material card to lead to between two bracing pieces is by the circumstances that the card was stuck, the rolling ball use is made stability has been increased, the maintenance cost of equipment has been reduced.
The specific working principle is as follows: after a material for preparing slurry enters the shell 1 from the feed port 11, the driving part 31 is started to drive the driving shaft 32 to rotate, and then the driving shaft 32 drives the stirring frame 33 to rotate, in the rotating process of the stirring frame 33, the material can be transported upwards along the spiral structure of the stirring frame 33, the material at the edge of the stirring frame 33 is blocked by the material blocking plate 34, and then after the material is transported to the uppermost end of the stirring frame 33, the material can fall from the material falling port 35 and can be uniformly scattered at different positions in the shell 1 by matching with the rotation of the stirring frame 33; when the interior of the shell 1 needs to be cleaned, the first telescopic rod 42 is extended to drive the cleaning disc 41 to move downwards, the cleaning blocks 43 which are arranged in an inclined mode are matched to scrape off the inner wall of the shell 1, when the cleaning disc 41 moves to the bottom of the shell 1, the cleaning blocks 43 contact the second retaining ring 46 and drive the cleaning blocks 43 to turn upwards under the blocking of the second retaining ring 46, then the first telescopic rod 42 is contracted to drive the cleaning disc 41 to move upwards, in the process that the cleaning disc 41 moves upwards, the inner wall of the shell 1 is cleaned for the second time through the cleaning blocks 43 which turn upwards, then when the cleaning disc 41 moves to the top, the cleaning blocks 43 can contact the first retaining ring 45 and drive the cleaning blocks 43 to turn downwards under the blocking of the first retaining ring 45, then the process is circulated until the cleaning of the inner wall of the shell 1 is completed, and meanwhile, when the cleaning disc 41 moves under the driving of the first telescopic rod 42, the cleaning plate 403 moves downward along with the cleaning disc 41, and then the cleaning plate 403 contacts the stirring frame 33 and the material blocking plate 34, and at this time, the driving member 31 is started to drive the driving shaft 32 and the stirring frame 33 to rotate, so that the cleaning plate 403 is scraped along the surface of the stirring frame 33; when the cleaning disc 41 finishes cleaning the inner wall of the casing 1, a part of slurry remains on the upper surface of the cleaning disc 41, at this time, the cleaning disc 41 is moved to the top so that the upper surface of the cleaning disc 41 is attached to the lower surfaces of the first scraping plate 52 and the second scraping plate 53, then the second driving member 58 is started to drive the gear 59 to rotate, and further the rotating ring 50 is driven to rotate through the engagement of the gear 59 and the rotating ring 50, so that the cleaning disc 41 rotates, when the cleaning disc 41 starts to rotate, the upper surface of the cleaning disc 41 is attached to the first scraping plate 52 and the second scraping plate 53 to rotate, at this time, the first scraping plate 52 and the second scraping plate 53 scrape the upper surface of the cleaning disc 41, so as to scrape the slurry remaining on the cleaning disc 41, and then when the slurry on the cleaning disc 41 is a little, the rotating shaft 51 is twisted to rotate relative to the fixed shaft 21, and the rotating block 55 is driven to rotate by the matching of the limiting plate 54 and the limiting groove 56, and then the rotating block 55 can drive the second scraping plate 53 to rotate through the second telescopic rod 57, so that the second scraping plate 53 inclines relative to the first scraping plate 52, and at this moment, the cleaning disc 41 continues to rotate, so that the slurry scraped from the cleaning disc 41 can be pushed to the inner side by the inclined second scraping plate 53 and falls downwards from the inner side of the cleaning disc 41.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (6)
1. The foam light soil roadbed filling material is characterized in that: comprises the following components by weight:
the foamed lightweight soil contains per cubic meter: 174-475 kg of ordinary portland cement, 116-190 kg of stone powder, 116-190 kg of fly ash, 116-190 kg of sludge ash, 116-190 kg of mineral powder, 116-190 kg of gypsum, 87-285 kg of water, 0.87-2.85 kg of water reducing agent, 0.87-1.43 kg of concrete reinforcing agent, 0.87-2.85 kg of enhanced water reducing agent, 0.3-1.2 kg of cement foaming agent, 0.15-0.95 kg of fiber and short fiber.
2. The foamed lightweight soil subgrade filling material according to claim 1, characterized in that: the cement is the cement with the reference number of 42.5 or 52.5; the water reducing agent is a naphthalene-based high-efficiency water reducing agent or a polycarboxylic acid high-performance water reducing agent; the foaming agent is a physical compound foaming agent.
3. The foamed lightweight soil subgrade filling material according to claim 1, characterized in that: the stone powder is any one of natural volcanic ash, artificial volcanic ash or limestone powder; the fibers are glass fibers; the water is surface water.
4. A process for preparing a foamed lightweight soil subgrade filling material according to claims 1-3, characterized in that: the method comprises the following steps:
1) preparing a diluent;
2) preparing slurry by using stirring equipment;
3) modulating foam by using a plunger pump and an air compressor;
4) producing foamed light soil;
the stirring equipment in the step 2) comprises a shell (1), a cover body (2) arranged on the shell, a feeding hole (11) arranged on the shell, a discharging hole (12) arranged on the shell, a fixed shaft (21) arranged on the cover body, a stirring device (3) arranged on the fixed shaft, a cleaning device (4) arranged on the cover body and an adjusting device (5) arranged on the fixed shaft; the stirring device comprises a driving piece (31) arranged on the fixed shaft, a driving shaft (32) arranged on the driving piece, a stirring frame (33) arranged on the driving shaft, a material baffle plate (34) arranged on the stirring frame and a blanking port (35) arranged on the material baffle plate; the discharge port is provided with a valve, the driving shaft can rotate relative to the fixed shaft, the stirring frame is spirally arranged along the circumferential direction of the driving shaft, and the material baffle plate is spirally arranged along the circumferential direction of the driving shaft; after the material of preparation mud enters into the casing from feed inlet department, start the driving piece and drive the drive shaft and rotate, and then drive the stirring frame through the drive shaft and rotate, at stirring frame pivoted in-process, the material can be up transported along the heliciform structure of stirring frame, and block the material of stirring frame edge department through the striker plate, after the material is transported to the stirring frame top, the material can drop from feed inlet department, cooperate the rotation of stirring frame simultaneously, make the even different positions of scattering at the casing of material.
5. The solar photovoltaic directional tracking device of claim 1, characterized in that: the cleaning device (4) comprises a cleaning disc (41) arranged on the cover body (2), a plurality of first telescopic rods (42) used for connecting the cover body and the cleaning disc, a plurality of cleaning blocks (43) arranged on the cleaning disc, a connecting ring (44) used for connecting the cleaning blocks, a first baffle ring (45) arranged on the shell, a second baffle ring (46) arranged on the shell, a first annular groove (47) arranged on one side of the first baffle ring, and a second annular groove (48) arranged on one side of the second baffle ring; the cleaning blocks can rotate relative to the cleaning disc, the cleaning blocks are arranged in an inclined structure when in use, the cleaning blocks are arranged in an annular structure when closed, and the connecting ring has elasticity; when the inside clearance that needs of casing, the first telescopic link of extension drives clearance dish downstream, the clearance piece that the cooperation slope set up strikes off the inner wall of casing, when clearance dish removes to the casing bottom, the clearance piece contacts second shelves ring, and drive a plurality of clearance piece upsets under the blockking of second shelves ring, shrink first telescopic link afterwards and drive clearance dish upstream, and at the in-process of clearance dish upstream, carry out the secondary clearance to the casing inner wall through the clearance piece after the upsets, when clearance dish removes to the top afterwards, the clearance piece can contact first shelves ring, and drive a plurality of clearance piece upsets under the blockking of first shelves ring, this process of circulation afterwards, accomplish until the clearance of casing inner wall.
6. The solar photovoltaic directional tracking device of claim 5, wherein: the cleaning device (4) further comprises a mounting groove (49) arranged on the cleaning disc (41), two rotating baffles (40) arranged on the mounting groove, a limiting hole (401) arranged on the mounting groove, a limiting rod (402) arranged on the limiting hole, and a cleaning plate (403) arranged on the limiting rod; the rotating baffle can rotate relative to the mounting groove, a torsional spring is arranged in the rotating baffle, one end of the torsional spring is connected to the rotating baffle, the other end of the torsional spring is connected to the mounting groove, the limiting rod is in threaded connection with the limiting hole, and the cleaning plate is matched with the stirring frame; when the clearance dish removed under the drive of first telescopic link, the clearance board can be along with the clearance dish down remove together, and the clearance board can contact stirring frame and striker plate afterwards, starts driving piece this moment and drives drive shaft and stirring frame and rotate for the clearance board strikes off along the surface of stirring frame.
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| CN202011163310.7A CN112374848B (en) | 2020-10-27 | 2020-10-27 | Foam light soil roadbed filling material and processing method thereof |
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| CN112374848B (en) | 2021-06-29 |
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